Search found 141 matches
- Thu Jan 27, 2005 7:18 pm
- Forum: Off topic forum
- Topic: Lord Rosse's "Leviathan"
- Replies: 15
- Views: 9177
Re: Lord Rosse's "Leviathan"
My old man liked getting to the bottom of old inventions. He also published the analysis of the water ram -- you know, that little device you put into a small stream, which uses the inertia of the flowing water to pump water uphil. Around the turn of the century, many rural settlements used a ram p...
- Tue Jan 25, 2005 11:35 pm
- Forum: Tools and Construction
- Topic: Water/methanol
- Replies: 4
- Views: 4419
Re: Water/methanol
Water injection was evaluated scientifically in the 1930’s by H. Ricardo who demonstrated that one can basically double the power output of an engine using water/methanol that sure is interesting and i wonder why not used more comonly. elsewhere reading about superheated steam was mentioned burni...
- Tue Jan 25, 2005 11:25 am
- Forum: Off topic forum
- Topic: Aircraft engine joke
- Replies: 15
- Views: 9457
Re: Aircraft engine joke
thanks for checking Mark.Ah, yes ... the dreaded seven-engine approach :)
i copied from my favorite boatdesign forum and started thinking i had to verify the lighthouse lol story.
- Mon Jan 24, 2005 12:50 pm
- Forum: Off topic forum
- Topic: Aircraft engine joke
- Replies: 15
- Views: 9457
Re: Aircraft engine joke
This is the transcript of the ACTUAL radio conversation of a British Naval ship and the Irish, off the coast of Kerry, Oct 95. Radio conversation released by the Chief of Naval Operations 10-10-95 IRISH: Please divert your course 15 degrees to the South, to avoid a collision. BRITISH: Recommend you ...
- Sun Jan 23, 2005 6:51 pm
- Forum: Valveless pulsejet forum
- Topic: Tube within a tube
- Replies: 4
- Views: 3723
Re: Tube within a tube
I've seen this valveless pulsejet design before, but I thought someone would like to try and make one. You have to scroll down the dubious site to find the valveless pulsejet, kind of a Tharratt cap only more so. http://www.alternative-technologies.org/aircraft.html scrolling all the way down is a ...
- Wed Jan 19, 2005 10:35 pm
- Forum: Off topic forum
- Topic: electric rocket
- Replies: 3
- Views: 3054
Re: electric rocket
Pezman, dont know if your plasma thruster is all together another engine. the teflon for reaction sounds odd to me, have not found the princeton plans yet but sure, why not of interest to all. as a concept i am in awe. see the movie at http://www.abc.net.au/catalyst/stories/s1185537.htm and wonder i...
- Mon Jan 17, 2005 6:29 pm
- Forum: Off topic forum
- Topic: electric rocket
- Replies: 3
- Views: 3054
electric rocket
girlfrend wants to play cards on the net so i quikly only park the link to electric rockets here http://science.nasa.gov/newhome/headlin ... pr99_2.htm
huigens, titan and this engine discussion later.
huigens, titan and this engine discussion later.
- Wed Jan 12, 2005 9:29 pm
- Forum: Valveless pulsejet forum
- Topic: Turbulence
- Replies: 1
- Views: 2746
Re: Turbulence
thanks, have it printed and framed on the wall allready :D
- Tue Jan 11, 2005 9:27 pm
- Forum: Valved pulsejet forum
- Topic: A possible fractal in a pulse combustor ...
- Replies: 22
- Views: 16375
Re: A possible fractal in a pulse combustor ...
as artform i've been playing with fractals and have seen mindblowing (speeded) animated 3d fractal movies.more exciting to watch it materialize
might still have "juliet" and "mandelson" fractal codes on floppy accepting variables that draw amazing pictures.
- Mon Jan 10, 2005 4:06 pm
- Forum: Valveless pulsejet forum
- Topic: Startup of a Steam Pulse Jet Driven Model Boat - VIDEO
- Replies: 30
- Views: 26980
- Sat Jan 08, 2005 6:43 pm
- Forum: Valveless pulsejet forum
- Topic: Startup of a Steam Pulse Jet Driven Model Boat - VIDEO
- Replies: 30
- Views: 26980
Re: Startup of a Steam Pulse Jet Driven Model Boat - VIDEO
in answer to webpilots earlyer qestion on bigger boats http://www.knatter-tom.de/geschichte.html says Mr. Rowland Payne befasste sich in den 70er Jahren intensiv mit einer Einrohr-Variante eines Reaktionsantriebes mit, der er es schaffte, ein 9 Meter Boot mit 0.3 m/s fortzubewegen. also at http://ww...
- Sat Jan 08, 2005 12:07 pm
- Forum: Off topic forum
- Topic: Pulsejet Poster for Tsunami Disaster Relief
- Replies: 14
- Views: 7825
Re: Pulsejet Poster for Tsunami Disaster Relief
not about posters but waves and tsunami, wave energy, mixed waves, above and below water waves etc. maybe you find something interesting here http://electron9.phys.utk.edu/phys135d/modules/m10/sound.htm Interference of Sinusoidal Waveforms applet http://webphysics.ph.msstate.edu/jc/library/15-11/sim...
- Thu Jan 06, 2005 10:51 pm
- Forum: Valveless pulsejet forum
- Topic: Startup of a Steam Pulse Jet Driven Model Boat - VIDEO
- Replies: 30
- Views: 26980
Re: Startup of a Steam Pulse Jet Driven Model Boat - VIDEO
biggest poppop boat i heard about was a small single seater boat going footstep speed.
have some smal and bigger putput tubing here i played with.
i really wonder what say "Steam Pulse Jet Driven" can evolve into.
keep me posted!
have some smal and bigger putput tubing here i played with.
i really wonder what say "Steam Pulse Jet Driven" can evolve into.
keep me posted!
- Thu Jan 06, 2005 10:17 pm
- Forum: Off topic forum
- Topic: Happy New Year
- Replies: 11
- Views: 7226
Re: Happy New Year
there is lol yes? first time i saw "that" was a few weeks ago and i dont think those birds ment any harm. did not know it was on this forum before. could not easely find a funny visual for 2005 so i put "this" on. as a H2O freak thinking we all go wet breaking the ice entering the new year. some clo...
- Wed Jan 05, 2005 5:04 pm
- Forum: Off topic forum
- Topic: Happy New Year
- Replies: 11
- Views: 7226